On the effect of two-direction seasonal flows on barchans and the origin of occluded dunes [PDF]
Geomorphology, 467, 109488, 2024We inquire into the morphodynamics of barchans under seasonal flows. For that, we carried out grain-scale numerical computations of a subaqueous barchan exposed to two-directional flows, and we varied the angle and frequency of oscillations. We show that when the frequency is lower than the inverse of the characteristic time for barchan formation, the ...
arxiv +1 more source
Profile measurement and simulation of a transverse dune field in the Lençóis Maranhenses [PDF]
Geomorphology 81, 29 -- 42 (2006), 2004 In this work, we report measurements of the height profile of transverse dunes in the coastal dune field known as ``Len\c{c}\'ois Maranhenses'', northeastern Brazil. Our measurements show that transverse dunes with approximately the same height present a variable brink position relative to the crest, in contrast to the case of barchan dunes.
arxiv +1 more source
River sensitivity: a lost foundation concept in fluvial geomorphology
, 2017 In the twenty‐first century, fluvial geomorphologists are ideally placed to use their science in an applied manner, and provide guidance on environmental issues of concern.
K. Fryirs
semanticscholar +1 more source
Global distribution of modern shallow marine shorelines. Implications for exploration and reservoir analogue studies [PDF]
, 2016 Acknowledgments Support for this work came from the SAFARI consortium which was funded by Bayern Gas, ConocoPhillips, Dana Petroleum, Dong Energy, Eni Norge, GDF Suez, Idemitsu, Lundin, Noreco, OMV, Repsol, Rocksource, RWE, Statoil, Suncor, Total, PDO ...
Howell, John A., Nyberg, Björn
core +1 more source
The Depositional Record, EarlyView.A limestone cave in the NW Dinarides exhibits an anomalous presence of montmorillonite clay, not commonly found in surrounding caves, posing questions about its origin and age. Analysis reveals a composition similar to weathered tephra from the Smrekovec Volcanic Complex, suggesting transport by north‐east winds.
Nadja Zupan Hajna +12 more
wiley +1 more source
Geomorphodynamics, evolution, and ecology of vertical roots [PDF]
Frontiers in Plant Science 14 (2023): 1102491The roots of some coastal and wetland trees grow peculiar vertical protrusions, the function of which remains unclear. Here, using computational simulations based on first-principles fluid and sedimentation dynamics, we argue that the protrusions work together to create an elevated patch of sediment downstream of the tree, thereby creating its own ...
arxiv +1 more source
Contributions of Albert Einstein to Earth Sciences: A review in Commemoration of the World Year of Physics [PDF]
Naturwissenschaften (2006) 93:66-71, 2005 The World Year of Physics (2005) is an international celebration to commemorate the one hundredth anniversary of Einstein's "Annus Mirabilis". The United Nations has officially declared 2005 the International Year of Physics. However, the impact of Einstein's ideas was not restricted to physics.
arxiv +1 more source
Genesis and reservoir preservation mechanism of 10 000‐m ultradeep dolomite in Chinese craton basin
Deep Underground Science and Engineering, EarlyView.Potential exploration target stratum of 10 000‐m ultradeep dolomite in Sichuan Basin and Tarim Basin, China. Abstract The 10 000‐m ultradeep dolomite reservoir holds significant potential as a successor field for future oil and gas exploration in China's marine craton basin.
Guangyou Zhu +8 more
wiley +1 more source
Investigating the Effect of Tectonic Activities on River Systems (Eastern Slope of Mullah Dagh. Zanjan province) [PDF]
تحقیقات کاربردی علوم جغرافیاییRivers are environmental forms that react strongly to changes in their bed, tectonic is the most important factor affecting morphology of the river, causing significant changes in river systems.
Zeinab karimi, Davood Mokhtari
doaj
A stylised view on structural and functional connectivity in dynamical processes in networks [PDF]
arXiv, 2021 The relationship of network structure and dynamics is one of most extensively investigated problems in the theory of complex systems of the last years. Understanding this relationship is of relevance to a range of disciplines -- from Neuroscience to Geomorphology.
arxiv